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731 B

#!/bin/sh
BASE_PATH=/sys/class/gpio
# GPIO pins
SATA0=26
SATA1=25
CPU_FAN=12
# Values
LOW=0
HIGH=1
export_pin() {
if [ ! -e $BASE_PATH/gpio"$1" ]; then
echo "$1" >$BASE_PATH/export
fi
}
unexport_pin() {
if [ -e $BASE_PATH/gpio"$1" ]; then
echo "$1" >$BASE_PATH/unexport
fi
}
set_mode() {
export_pin "$1"
echo "out" >$BASE_PATH/gpio"$1"/direction
echo "$2" >$BASE_PATH/gpio"$1"/value
if [ "$3" = "clean" ]; then
unexport_pin "$1"
fi
}
turn_on() {
set_mode $SATA0 $HIGH
sleep 1
set_mode $SATA1 $HIGH
set_mode $CPU_FAN $LOW
}
turn_off() {
set_mode $SATA0 $LOW clean
set_mode $SATA1 $LOW clean
set_mode $CPU_FAN $LOW clean
}
trap turn_off INT
if [ "$1" = "on" ]; then
turn_on
else
turn_off
fi
exit 0